hw: replace apb_uart with obi_uart #61
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apb_uart implements only 16750 (larger FIFO) obi_uart was developed by students at ETHZ. It implements 16550A (smaller), with plans to add an optional 16750 mode in the future. This and native obi makes obi_uart a better fit for smaller systems like croc.
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* hw: replace apb_uart with obi_uart apb_uart implements only 16750 (larger FIFO) obi_uart was developed by students at ETHZ. It implements 16550A (smaller), with plans to add an optional 16750 mode in the future. This and native obi makes obi_uart a better fit for smaller systems like croc. * test: add uart receive check via loopback mode * sw: fix relocation truncated to fit error
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apb_uart implements only 16750 (larger FIFO) and is considered deprecated for PULP projects.
obi_uart was developed by students at ETHZ and implements 16550A (smaller),
with plansto add an optional 16750 mode in the future aimed at larger SoC.
The smaller size, SystemVerilog code and native obi makes obi_uart a better fit for smaller systems and especially for croc.